NUCLEAR MAGNETIC RESONANCE SPECTROSCOPY. CONFORMATIONAL PROPERTIES OF CYCLOBUTANES: VARIATION OF VICINAL HYDROGEN-FLUORINE COUPLING CONSTANTS WITH TEMPERATURE.

Abstract

The observation of substantial temperature variations of vicinal hydrogen-fluorine coupling constants in a series of cyclobutanes is consistent with the existence of an equilibrium between conformations. The temperature dependencies are discussed in terms of the models developed previously. The magnitude of these couplings as a function of the dihedral angle appears to follow a relationship similar to that described by Karplus for proton-proton couplings. (Author)

Document Details

Document Type
Technical Report
Publication Date
May 01, 1965
Accession Number
AD0463483

Entities

People

  • John D. Roberts
  • Joseph B. Lambert

Organizations

  • California Institute of Technology

Tags

DTIC Thesaurus Topics

  • Couplings
  • Cyclic Hydrocarbons
  • Cyclobutanes
  • Dihedral Angle
  • Fluorine
  • Hydrogen
  • Magnetic Resonance
  • Motion
  • Nuclear Magnetic Resonance
  • Observation
  • Resonance
  • Spectroscopy

Fields of Study

  • Physics

Readers

  • Control Systems Engineering.
  • Molecular Photonics/Laser Physics
  • Organic Chemistry